Background: Conversion from laparoscopic to open Roux-en-Y gastric bypass (RYGBP) is expensive and time-consuming. Methods: Data from our first 1,000 laparoscopic RYGBP was entered into a database (Minnesota Database-Bariatric, Exemplo Medical). All patients met NIH criteria for bariatric surgery. Results: 41 (4.1%) of 1,000 consecutive lapRYGBPs were converted to open. Patients requiring conversion to open surgery, analyzed for predictors, revealed: 1) BMI, waist size, and weight all were significantly greater in patients converted to open bypass; 2) Gender: 9 of 109 males (8.3%) and 32 of 891 females (3.6%) were converted (Fischer's exact test, P=0.035); 3) Average age of patients converted was 44.9 compared to 41.3 in the lap group (P=0.02); 4) Conversion was required for 12 large livers (1 palpable preop, 7 had diabetes, 7 had NASH or steatosis); 5) 10 conversions for mechanical/technical reasons – 6 for inability to distend abdominal wall and/or manipulate instruments due to thickness of wall, and 2 due to loss of instruments in abdomen; 6) 9 required conversion for adhesions (2 from previous cholecystectomies with biliary leaks, and 1 from previous transverse colectomy; 7) 4 visceral injuries required conversion (2 stomach, 1 small bowel, 1 esophagus); 8) 3 hemorrhages from spleen with blood loss over 1300 ml required conversion (1 spleen removed, 6 minor not requiring open conversion); 9) 3 conversions were for anomaly/disease (1 malrotation of colon, 1 ovarian teratoma, and 1 intra-thoracic stomach). Conclusion: Steatohepatitis, diabetes mellitus, adhesions from various causes, previous bile leaks, large waist size, BMI, and weight are predictors for conversion to open surgery.
This is a preview of subscription content, access via your institution.
Buy single article
Instant access to the full article PDF.
Price excludes VAT (USA)
Tax calculation will be finalised during checkout.
Rights and permissions
About this article
Cite this article
Schwartz, M.L., Drew, R.L. & Chazin-Caldie, M. Factors Determining Conversion from Laparoscopic to Open Roux-en-Y Gastric Bypass. OBES SURG 14, 1193–1197 (2004). https://doi.org/10.1381/0960892042386887
- MORBID OBESITY
- GASTRIC BYPASS